Answer:
you feel the cold water, and by instinct, you pull your foot out and yelp in pain.
Explanation:
Answer:
you feel extreme pain and start to yell which leads to you falling down and ending up in a injuerd state
Explanation:
Hydrobromic acid, HBr, is a strong acid. Hydrofluoric acid, HF, is a weak acid. If you prepared equal
concentrations of both acids in separate containers -
(A) The hydrobromic acid would only partially dissociate
(B) They would have the same pH
(C) The pH of hydrobromic acid would be less than hydrofluoric acid
(D) The pH of hydrofluoric acid would be less than hydrobromic acid
Which one do I pick?
Answer:
i would go for the 2nd as far as i know they were a big continent and an earthquake separes them all
Please help can anyone answers without put the answer in a link please because its not work
Answer:
a is answer i think
Explanation:
A bottle of an unknown liquid has a volume of 6.3 mL and mass 255.15 g. What is its density? *
Answer:
40.5 g/mL
Explanation:
Density is a measure of a substance's mass over its volume.
d = m/v
Therefore d = 255.15g/6.3mL = 40.5 g/mL
Can anyone help me with this? It's chemistry
Answer:
ohh... it's time vs air that's all
An object accelerates 5.0 m/s2 when a force of 12.0 newtons applied to it.What is the mass of the object?
Please help, I haven’t seen this question anywhere !
Also this is from my Science Class
Answer:
2.4kg
Explanation:
Newton's 2nd law tells us that force is equal to the mass of an object multiplied by its acceleration, or F = ma. We can solve this equation for mass by rearranging algebraically:
m = F/a
So:
m = (12.0N)/(5.0m/s2) = 2.4kg
lots o points and brainliest To find the atomic mass of an element that is included on a periodic table, what must be found first?
The number of protons in that element.
The average mass of all the isotopes.
The number of electrons in that element.
The number of neutrons in that element.
Answer:
The average mass of all the isotopes.
Option B.
Explanation:
Have a great rest of your day.
Which characteristics of flower petals help an angiosperm reproduce? (Select all that apply.)
Answer:
attractive smell and bright colours
A halloon has a volume of 456 mL at a pressure of 1.0 atm. It is taken under water in
a submarine t a depth where the air pressure in the submarine is 3.3 atm. What is the
volume of the balloon? assume con- stant temperature.
According to Boyle's law, temperature being constant the volume of the balloon at pressure 3.3 atmospheres is 138.18 ml.
What is Boyle's law?Boyle's law is an experimental gas law which describes how the pressure of the gas decreases as the volume increases. It's statement can be stated as, the absolute pressure which is exerted by a given mass of an ideal gas is inversely proportional to its volume provided temperature and amount of gas remains unchanged.
Mathematically, it can be stated as,
P∝1/V or PV=K. The equation states that the product of of pressure and volume is constant for a given mass of gas and the equation holds true as long as temperature is maintained constant.
According to the equation the unknown pressure and volume of any one gas can be determined if two gases are to be considered.That is,
P₁V₁=P₂V₂
Substitution in above equation gives, V₂=1×456/3.3=138.18 ml.
Thus, the volume of balloon is 138.18 ml.
Learn more about Boyle's law,here:
https://brainly.com/question/1437490
#SPJ2
The melting point of a substance is the same as its _____ point.
evaporation
freezing
boiling
sublimation
What is a compound
A.) smog
B.) sea water
C.) air
D.) magnesium
E.)salt
Edmentum answer
Answer:
B
Explanation:
because sea water taste like Salt
someone help ,, I'll give brainliest lolll .
Answer:
#2
Explanation:
Corrosion is a natural process that converts a refined metal into a more chemically stable form . It is the gradual destruction of materials by chemical
will give brainliest!
1. (15 points) If the amount of energy required to break bonds in the reactants is more than the amount of energy released in forming bonds in the products, the chemical reaction is endothermic
A. True
B. False
Please help with chemistry
Answer:
Proton
Explanation:
It has a positive charge
Answer:
electron
Explanation:
What is the name of the compound H₃S₅?
Plzzzzzzzzzzzzzzzzzzzzzzzzz help me i swear will mark you brainiest
Nitric oxide, NO, is formed when oxygen and nitrogen from the air react in an internal combustion engine.
What is the right equation for this reaction
Answer:
The combustion of hydrogen–oxygen mixtures is used to produce very high temperatures (approximately 2500 °C) needed for certain types of welding operations. Consider the reaction to be
H2(g)+1/2O2(g)=H2O(g)
change in enthalpy is -241.8 kJ
What is the quantity of heat evolved, in kilojoules, when a 160 g mixture containing equal parts of H2 and O2 by mass is burned?
Explanation:
i hope this help sorry if it does not ok bye luv!!!
please help me with n5 ty
and don’t waste my time if you don’t know the answer please
Thanks:)
What does water offer that attracts human settlement?
Answer:
Water is a human necessity. Therefore, it is one of the first things a human settlement would need to have. A community cannot thrive without a water source.
Answer:
Water is a basic need that is more than a necessity, humans can't survive without water for more than a period of three days, And thus having water as available, creates a tendency among humans as humans like to get everything at ease so they tend to settle near the water bodies if possible.
For the balanced equation shown below, if the reaction of 34.6 grams of C2H4F2 produces 6.90 grams of H2O, what is the percent yield?
2C2H4F2 + 3O2 → 4CO + 2H2O + 4HF
lima ribu juta miliar triliun ......
Question 4 of 5
Suppose a disease wipes out most of the fox population in
the food web shown.
Mountain
lion
Deer
Hawk
Fox
Rabbit
Owl
Snake
Green
plant
Mouse
Which two populations are most likely to increase as a
result?
Answer:
Rabbit and Mouse
Explanation:
The rabbit and mouse are the prey of foxes.
Which statement BEST describes what happens during solvation?
Answer:
A
Explanation:
The statement best describes solvation " KCl is surrounded by the polar water molecule to form an electrolyte solution which can conduct electricity."
What is solvation?The act of attracting and associating particles of a solvent mostly with molecules as well as ions of a solute would be known as solvation.
What is electrolyte?A material that contains ions and has been electrically conducting due to the mobility of the ions but still doesn't conduct electrons was called an electrolyte.
Whenever the solvent would be in the water, the process is referred to as hydration. The process of solvation shows the combination of solvent and solute molecules. A solute molecule is usually surrounded with solvent molecules that are organized in a special manner during solvation.
Therefore, the correct answer will be an option (A)
To know more about solvation and electrolyte
https://brainly.com/question/14356923
#SPJ3
A scientist wants to investigate the effect of concentration of nutrient agar to the growth of bacteria. He created 3 set ups: A) 30 g nutrient agar powder in 1 L H2O B) 40 g nutrient agar power in 1L H2O C) 50 g nutrient agar powder in 1 L H2O
1) Based from the given scenario, CREATE a testable hypothesis using IF-THEN- BECAUSE statements.
2) Using your hypothesis, IDENTIFY the dependent and the independent variables.
Why is burning fossil fuels a problem?
Answer:
it's harmful
Explanation:
it's harmful to our environment it can endanger our planet and endangered animal species it can also kill lots of plants and we have a hard time burning fossil fuels with limited factories which costs a lot of money.
1. Complete the following: (a) Covalent bonds are one type of ___________ forces that are formed when two atoms ______ electron(s) (b) Covalent compounds consists of two __________ atoms (c) Single covalent bond: are formed when two atoms share _______ pair of electrons. (d) Double covalent bond: are formed when two atoms share _________ pairs of electrons. (e) Triple covalent bond: are formed when two atoms share ________ pairs of electrons. (f) A molecule is a neutral groups of atoms that are held together by _______ bonds (g) Diatomic molecule consists of ________ atoms. (h) Molecular compound is made of _________ bonded atoms
Answer:
a) Van der Waals intermolecular forces
b) bonded
c) one pair
d) two pairs
e) three pairs
f) chemical bonds
g) two atoms
h) two or more covalently bonded atoms
Explanation:
(a) Covalent bonds are one type of Van der Waals intermolecular forces that are formed when two atoms share electron(s)
(b) Covalent compounds consists of two bonded atoms
(c) Single covalent bond: are formed when two atoms share one pair of electrons.
(d) Double covalent bond: are formed when two atoms share two pairs of electrons.
(e) Triple covalent bond: are formed when two atoms share three pairs of electrons.
(f) A molecule is a neutral groups of atoms that are held together by chemical bonds.
(g) Diatomic molecule consists of two atoms.
(h) Molecular compound is made of two or more covalently bonded atoms.
What is the percent composition of Iron in
Fez(Cr207)3
Answer:
Explanation:
The percentage composition of iron (Fe) in Fe2(Cr207)3 can be calculated by finding the molar mass of Fe and the compound
how to find molar mass
Answer:
Multiply the element's atomic mass by the number of atoms of that element in the compound. This will give you the relative amount that each element contributes to the compound. For hydrogen chloride, HCl, the molar mass of each element is 1.007 grams per mole for hydrogen and 35.453 grams per mole for chlorine.
A researcher created the graph showing the human population compared to the total
number of species that have gone extinct over time.
Which statement should be refuted based on the data?
Choose the correct answer.
A As the human population increases, the rate of extinctions is not affected.
B Water and air become polluted at higher rates as the human population grows.
C Animal habitats are destroyed to make space for homes as the number of humans
on Earth increases.
D A greater human population means that less food and water resources are available
for other organisms
Answer:
Based on the data, the statement that should be refuted is option A;
A As the human population increases, the rate of extinctions is not affected
Explanation:
From the graph showing the human population compared to the total number of species that have gone extinct over time, we have;
As the human population increases, the total number of species that have gone extinct with time also increases, therefore, we have;
There is a (near) linear relationship between the increase in human population and the total number of species that have gone extinct with time and as human population increases, the number the rate of extinctions also increases
Therefore, the statement to be refuted based on the data is presented as follows;
'As the human population increases, the rate of extinctions is not affected'
Two or more atoms chemically bonded together are called
Answer:
A compound is "a substance formed when two or more chemical elements are chemically bonded together." There are two main types of chemical bonds: covalent and ionic.
Explanation:
Hope this helps!
An object with a mass of 2.0 kg had a force of 4.9 newtons applied to it.What is the resulting acceleration of the object?
This is from my Science Class !And I haven’t seen this question anywhere !
Answer:
2.45 m/s2
Explanation:
Newton's 2nd law tells us that force is equal to the mass of an object multiplied by its acceleration, or F = ma. We can solve this equation for acceleration by rearranging algebraically:
a = F/m
So:
a = (4.9N)/(2.0kg) = 2.45 m/s2
Ethanol melts at -114 °C and boils at 78 °C.
Predict the state of ethanol at:
a) -150 °C,
b) 25 °C,
c) 0 °C,
d) 100 °C.